Home / 72,110,411.18-99,517,249.80-40,737,579.07

Finding the Fourth Proportional to 72,110,411.18, 99,517,249.80 and 40,737,579.07

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Solution

The fourth proportional to 72,110,411.18, 99,517,249.80 and 40,737,579.07 is: 56,220,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110,411.18 : 99,517,249.80 = 40,737,579.07 : x
  2. Step 2: Convert to fraction form
    72,110,411.18/99,517,249.80 = 40,737,579.07/x
  3. Step 3: Cross multiply
    72,110,411.18x = 99,517,249.80 × 40,737,579.07
  4. Step 4: Simplify right side
    72,110,411.18x = 4,054,091,832,307,648.50
  5. Step 5: Solve for x
    x = 4,054,091,832,307,648.50/72,110,411.18
  6. Step 6: Final answer
    x = 56,220,617.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.